While this happens, the heat generated by the fusing of these elements will push the sun's outer shell to swell. This will be bad news for the inner planets of the solar system — including Earth.

The universe is far more than just a vast emptiness,it's an intricate, mind-boggling realm full of surprises. From the ...

More QUICK FACTS ABOUT SATURN How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

Monroeville Public Library is holding a three-part children’s series on space, where participants learn fun facts about the sun, planets, stars and asteroid belt. The first session this month ...

This will be bad news for the inner planets of the solar system — including Earth. As the sun becomes a type of star called a red giant, its outer shell will expand to the orbit of Mars ...